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Hookworms infected about 428 million people in 2015. [4] Heavy infections can occur in both children and adults, but are less common in adults. [2] They are rarely fatal. [6] Hookworm infection is a soil-transmitted helminthiasis and classified as a neglected tropical disease. [7]
Hookworm is closely associated with poverty because it is most often found in impoverished areas, and its symptoms promote poverty through the educational and health effects it has on children. [2] It is the leading cause of anemia and undernutrition in developing countries, while being one of the most commonly occurring diseases among poor people.
N. americanus is the more common hookworm, while A. duodenale is more geographically restricted. Unlike other STHs, in which school-age children are most affected, high-intensity hookworm infections are more frequent in adults, specifically women. Roughly 44 million pregnant women are estimated to be infected.
The signs and symptoms of helminthiasis depend on a number of factors including: the site of the infestation within the body; the type of worm involved; the number of worms and their volume; the type of damage the infesting worms cause; and, the immunological response of the body. Where the burden of parasites in the body is light, there may be ...
Don't let allergies ruin your kid's spring break! Pediatrician Dr. Alok Patel and Yahoo Life share best ways to beat the pollen this season. The truth about children and allergies: Experts weigh in
The study demonstrated that food allergy rates vary markedly, ranging from 2.9% among Indian American children to 8.2% among Filipino children. (The rate for all U.S. children is 5.8% .)
In penetrating the skin, the larvae may cause an allergic reaction. It is due to the itchy patch at the site of entry that the early infection gets its nickname "ground itch". Once larvae have broken through the skin, they enter the bloodstream and are carried to the lungs (however, unlike ascarids, hookworms do not usually cause pneumonia).
The hookworms attach to the mucosal lining using their cutting plates which allows them to penetrate blood vessels and feed on the host's blood supply. Each worm consumes 30 μl of blood per day. The major issue results from this intestinal blood loss which can lead to iron-deficiency anemia in moderate to heavy infections.